Transporting and dumping device



Dec. 15, 1942. e. R. DEMPSTE ZR TRANSPORTING AND PUMPING DEVICE a Sheets-Sheet 1' Filed Sept. 20, 1940 Dec. 15, 1942- a. R. DEMPSTER TRANSPORTIfiQAND DUMPING' DEVICE Filed Sept. 20, .1940 6 Sheets-Sheet 2 s. R. DEMPSTER ,1

TRANSPORTING AND DUMPING Dmvicm Filed Sept. 20, 1940 6 Sheets-Sheet 3 Dec. 15, 1942. DEMPSTER 2,305,148

TRANSPORTING AND mmrme DEVICE File cLSept. 2c, 1940 6 Sheets-Sheet 4 Dec. 15, 1942. a. R. D EMPSTER TRAN-SPORTING AND DUMPING I onvxcs 6 Sheets-Sheet 5 Filed Sept 20, 1940 Dec. 5, 42 e. R. nsmPsTr-z 2,305,148

TRANSPORTING 'A-ND mmrme n'nviqm Filed Sept. 20, 1949 e Sheets-Sheet 6 Patented Dec. 15, 1942 UNITED STATES PATENT OFFICE 2,305,148 TRAN SPORTING AND DUMPING DEVIC)- George R. Dempster. Knoxville, Tenn. Applicationseptember 20, 1940, Serial No. 357,629

20 Claims.

This invention relates to transporting and dumping devices and more particularly to transporting and dumping devices by which one or more transporting and dumping containers can be transported and individually dumped.

More particularly still this invention relates to I transporting and dumping devices by which one dumping operation.

It is accordingly an object of the present invention to provide a novel transporting and dumping device by which one or, more transporting and dumping containers can be transported and individually dumped.

Another object of the present invention is to i provide a novel transporting and dumping device in which the first transporting and dumping container elevated for transportation acts as a skid for the next transporting and dumping container elevated for transportation.

Another object of the present invention is to provide a novel transporting and dumping device in which the first transporting and dumping container elevated for transportation supports the secondtransporting and dumping container elevated for transportation during the dumping operation ofthe second transporting and dumping container.

Another object of the present invention is to provide a novel transporting and dumping device in which each transporting and dumping container elevated for transportation acts as a skid for the next transporting and'dumping container elevated for transportation.

Another object of the present invention is to provide a novel transporting and dumping device by which oneor more transporting and dumping containers can be transported and individually dumped in which each transporting and dumping container supports the adjacent transporting and. dumping container during its dumping operation.

provide a novel transporting and dumping device by which one or more transporting and dumping containers can be transported and individually dumped which is of simple construction, rugged, durable, easy to operate and maintain, and relatively inexpensive to manufacture.

Other and further objects of the present invention will appear as the' description thereof proceeds.

While the novel transporting and dumping device of the present invention is capable of many mechanical expressions and can be used to transport and dump more than two transporting'and dumping-containers, for the purposes of illustration the present invention is illustrated in the accompanying drawings and is hereafter described for use with two transporting and dumping containers. It is to be expressly understood that the embodiment of the present invention shown in the accompanying drawings and described hereafter for use with two transporting and dumping containers is shown and described for thepurposes of illustration only and is not to be construed as limiting the scope of the present invention. To determine the breadth of the present invention reference should be had to the appended claims.

In the accompanying drawings, in which like reference characters indicate similar parts,

Fig. 1 is a side view of an illustrative embodiment of the novel transporting and dumping device of the present invention showing the first 1 showing the second transporting and dumping Q container in dumping position;

Another object of the present invention is to provide a novel transporting and dumping device for the transportation and dumping of one or.-

more' transporting and dumping containers wherein a greatly increased load capacity is obtained without unduly increasing the bulk or weight of the device.

Another object of the present invention is to transporting and dumping container raised to its elevated position;

- Fig. 2 is a side view of, the embodiment of 'Fig. 1 showing the first transporting and dumping container in lowered position upon the vehicle and the second transporting and dumping container raised to its elevated position;

Fig. 3 is a side view of the embodiment of Fig. 1 showing both transporting and dumping containers in transporting position;

. Fig. 4-is a side view of the embodiment of Fig.

Fig. 5 is a view of the embodiment of Fig. 1, partly in section, as viewed from the right in Fig. 1 showing the relative location of .the several parts;

Fig. 6 is a side view of a novel transporting and dumping container for use with the embodiment of-the present invention shown in Fig. 1;

Fig. '7 is an end view of the novel transporting spaced and reinforced by cross members Referring nowto the several figures and more particularly Figs. 1-5, I3 are the side bars of any suitable vehicle chassis supported by rear wheels II and provided with a cab I2. Suitably mounted on and secured to side bars III are longitudinally extending channel members I3 suitabl4y I Pivotally mounted as at I5 on the forward cross member I4 are boom arms I3, each boom arm I3 being provided with an elevating cylinder I1 and associated piston I3, cylinders I1 being pivotally mounted at I3 to an intermediate cross member I4 and pistons I3 pivotally engaging boom arms I6 at 23. 'Boom arms I6 are joined at their outer extremities by a spreader and lifting arm 2|.

Mounted for longitudinal movement in channel members I3 on rollers 22 (Fig. 5) is a platform 23 actuated by a suitable cylinder 24 and piston 25, piston 25 being connected to the forward end of platform 23 and cylinder 24 being connected to the forward end of the channel member-cross member assembly. A stop 23 is the junction of lifting chains 34 and arm 2|. The motive fluid is then bled from cylinders and the weight of the first container and contents, swinging about arm 2| as thefulcrum, forces skid frame 23 forward in'channel members 21 to a position adjacent the forward end of platform 23, as shown in Fig. 2. Boom arms I3 are then lowered until the first container rests upon channel members 21, the travel of skid frame 23 being so designed that in this position the reinforcing members 42 of the first container form an extension of apron 33.

Hooks 35 of lifting chains 34 are then engaged with studs 4| of the second container and boom arms I3 raised raising the second container upwardly over apron 33 alongthe skidway formed by the reinforcing members 42 of the first con- 0nd container is placed in its transporting posiprovided to limit the rearward movement of plat- I form 23. Mounted on platform 23 are longitudinally extending channel members 21 in which 'a skid frame 28 is mounted for 1ongitudinal movement on rollers 29. Cylinders 33 and pistons 3| are provided to actuate skid frame 23, pistons 3| being connected to skid frame 28 and cylinders 33 being connected to the forward end of platform 23. Pivotally mounted on the upper end of skid frame 23 is a suitable automatic hook or catch 32. v

Suitably secured to the rear cross member I4 is a downwardly depending apron 33.

Connected to the extremities of the spreader and liftingarm2l are lifting chains 34 terminating in suitable hooks 35. J a

Referring more particularly now to Figs. '6 and 7, a suitable transporting and dumping container 33 for use with the transporting and dumping device of the present invention is there shown. Container 33 is .provided with a suitable bail 31 secured to the rear wall thereof and is provided with a drop'bottom 33 reinforced by members 33 and pivoted or hinged at 43' along the lower edge of the rear wall of the container. Bottom 33 is provided with triangularly shaped upstanding portions 40 which fill suitably cutaway portions of the side'walls'of the container when bottom 33 is in closed position, upstanding portions 43 being provided with suitable studs 4| to receive hooks 35 of lifting chains 34. The front wall of container 33 is provided with reinforcing members 42 designed to act as skidways for the next container to be elevated. Pivotallymounted at the middle top of .the front wall of the container is a suitable automatic hook or catch 43.

With the illustrative embodiment of the present invention set up as above described, when it is desired to transport and dump suitable transporting and dumping containers, platform 23 is moved to its rearward position adjacent stop 23 by piston and skid frame 23 is moved to its rearward position on platform 23 adjacent stop 23 by pistons 3|. Boom arms I3 are then lowered until hooks 35 of lifting. chains 34 can be engaged with studs '4I of the first container 33. Boom arms I3 are then elevated by pistons I3 and the'first container is raisedupwardly over apron 33 and skid frame 23, to its elevated position as shown in Fig. 1. It is to be noted that in its elevated position the center of gravity of the first container is in a position rearwardly of tion by bleeding the motive fluid from cylinder 24, the weight of the second container and its contents acting against the first container and skid frame 23 to move platform 23 to its forward position as shownin Fig. 3. Boom arms I3 are then lowered until the second container rests upon the top of channel members I3 and behind stop 26. Boom arms I3 may then be further lowered to act as side supports for the containers as shown in Fig. 3, to prohibit any lateral movement thereof. Skid frame 23 and stop 23 prohibit any forward or rearward movement of the containers during transportation.

When it is desired to dump the containers, hooks of lifting chains 34- are engaged with .studs 4| of the second container and boom arm members 42 of the first container.

I6 elevated lifting this container off of channel members I 3 and upwardly along the reinforcing Thereafter piston 25 is energized to move platform 23 to its rearward position adjacent stop 23 which in turn moves skid frame 23 and the first container to the rear forcing the second container out beyond the rear end of the vehicle chassis. When platform 23 reaches its rearward position the second container is lowered by lowering'boom arms I3 until the automatic hook or catch 43 of the first container 36 engages its ball 31. Boom arms I 6 are .then further lowered releasing the tension on chains 34 and bottom 33 of the second container rotates about hinge or pivot'43' and dumps the contents of the container as shown in Fig. 4.

When the second container has been dumped boom arms I6 are. raised until chains 34 close bottom 33 and until the automatic hook or catch 43 is disengaged. 'T'hereafter boom arms'gIB'are the The first container 33 is then dumped by engaging hooks 35' of chains 34 with its studs 4|. Boom arms I Ii are elevated and the first container raised off of channel members 21. Further elevation of the container engages bail '31 with the automatic hook or catch 32 mounted at the top of skid frame 23. Pistons 3| are then energized moving skid frame 23 to its rearward position adjacent stop 23. When this position has been reached boom arms IB'are lowered releasing the tension on chains 34 and the bottom 33 of the container rotates about hinge or pivot 43' and the contents of the container are dumped. After dumping, boom arms I3 ar'e elevated and chains close-the bottom 38 of the container and lift the container along skid frame "until the automatic hook or catch 32 is skid for the next transporting and dumping container elevated for transportation; in which one or more transporting and dumping containers,

can be individually transported and dumped; in which each transporting and dumping container elevated for transportation supports the adjacent transporting and dumping container during its dumping operation; in which a greatly increased load capacity is obtained without unduly increasing the bulk or the weight of the structure; and

which is of simple construction, rugged, durable, easy to operate and maintain and relatively inexpensive to manufacture. a

To those skilled in the art changes to or modifications of the above described illustrative embodiment of the present invention may now be suggested without departing from the scope of the invention. For example, any suitable type of transporting container may be used with the transporting device of the present invention and the typeof container used need not be limited therefrom by hand or other suitable means. To

determine the scope ofthe present invention,

.therefore, reference should be had to the ap pended claims,

What is claimed is:

1. In a transporting vehicle, means mounted on the vehicle chassis movable longitudinally thereof over the rear wheels of the vehicle, a

skid frame carried by and longitudinally movable with respect to said movable means, and a boom pivotally mounted on the vehicle chassis,

and adapted to elevate a container and place it on said means in position to act as a skid up which the next container elevated is raised.

4 2. In a transporting vehicle, means mountedon the vehicle chassis movable. longitudinally thereof over the rear wheels of the vehicle, a boom pivotally mounted on the vehicle chassis and adapted to elevate containers, and a skid frame carried by and longitudinally movable over said movable means and up which the first container elevated is raised, said skid frame being movable by said first container to a position in which said first container in turn acts as a skid up which the next container elevated is raised.

3. In a transporting vehicle, a platform mounted on the vehicle chassis for movement backward om: forward over the rear wheels of the vehicle,

a boom pivotally mounted forwardly on the vehicle chassis and adapted to elevate containers, and a skid frame mounted for forward and backward movement on said platform and up which the first container elevated is raised, said skid frame being movable by the weight of said flrstj container to a position in which said first container may be deposited on said platform and act as a skid up which the next container elevated is raised.

4. In a transporting vehicle, a track or way extending forward from the rear end of the vehicle above and across the rear axle thereof,

a platform mounted for backward and forward movement on said track or way, a boom pivotally mounted at the forward end of said track or way and adapted to elevate containers, and a skid frame mounted for forward and backward movement on said platform and up which the first container elevated is raised, said skid frame being movable by said first container to a position in which said first container may be deposited on said platform and act as a skid up which the next container elevated is raised, and said next container acting on said first container by gravity to move the same to a position in which said next container may be deposited on said chassis.

5. In a transporting vehicle, a track or way extending forward from the rear end of the vehicle' above and across the rear axle thereof, a platform mounted for backward and forward movement on said track or way, a power cylinder means for impartingmovement to said platform along said track Or way, a vertically swingin boom pivoted at the forward end of said track or way, power cylinder means for imparting vertical movement to said boom to elevate containers, a skid frame mounted for forward and backward movement on said platform and up which the first container elevated is raised, andmounted on the vehicle chassis for elevating containers, and a skid frame mounted for movement forward and backward over the rear wheels of the vehicle and capable of occupying successive forward positions in one of which the first container is adapted to be elevated along the same, each container in turn acting on'said skid frame to move the same forwardly to a position in which the first container to be elevated acts as a skid up which the next container elevated is raised. v

'7. In a transporting vehicle, means mounted on the vehicle chassis movable longitudinally thereof over the rear wheels of the vehicle, a boom pivotally mounted on the vehicle chassis, containers designed forelevation by said boom, and a skid frame carried ,by and longitudinally movable over said movable means and up'which the first container elevated is raised, each container in turn acting as a skid up which the next containcrflelevated is ra sed and havin means supporting the next container during its dumping said boom, a skid frame mounted for forward and backward movement on said platform and up which the first container elevatedis raised, and means cooperating with said skid frame and platform whereby each container raised acts as a skid up which the next container elevated is raised, each container having means supporting the next container during its dumping operation.

9. In a transporting vehicle, a track or way extending forward from the rear end of the vehicle above and across the rear axle thereof, a

platform mounted for backward and forward movement on said track or way, a boom pivotally mounted at the forward end of said track or way,

containers to be elevated by said boom, and a skid frame mounted forforward and backward movement on said platform and up which the first container elevated is raised, and means cooperating with said skid ,frame and platform whereby each container raised is moved to a position for deposit on said' vehicle thereafter act-' ing as a skid up which the next container elevated is raised and having means supporting the next container during its dumping operation.

10. In a transporting vehicle, a boom pivotally mounted .on the vehicle. chassis, containers designed for elevation by said boom and a skid operation.

11. In a transporting vehicle, means mounted on the vehicle chassis movable longitudinally thereof over the'rear wheels of the vehicle, a skid frame carried by and longitudinally movable over said movable means, a boom pivotally mounted extending forward from the rear end of the vehicle above and across the rear axle thereof, a

platform mounted for backward and forward movement on said track or way, a boom pivotally mounted at the forward end of said track or way for elevating containers, a skid frame mounted for forward and backward movement on said platform and up which the first container elevated is raised, and means for moving said skid frame and platform forwardly and so constructed and arranged that the weight of each container when elevated will in succession move said skid frame and said platform forwardly while the container swings into position for low- I ering onto the vehicle.

15. In a transporting vehicle, a track or way extending forward from the rear end of the vehicle above and across the rear axle thereof, a platform mounted for backward and forward movement on said track or way, a power cylinder means for imparting movement to said platform along said track or way, a vertically swinging boom pivoted at the forward end of said track or way, a power cylinder means for imparting vertical movement to said boom, a skid,frame mounted for forward and backward movement on said platform and up which the first container elevated is raised, and a power cylinder means connected to said platform and skid frame for on the vehicle chassis and adapted to elevate containers, and means, for operating said skid frame so constructed and arranged that the weight of each container when elevated will move said skid frame forward and swing the container into positionfor lowering onto the vehicle.

12. In a transporting vehicle, means mounted on the vehicle chassis movable longitudinally thereof over the rear wheels of the vehicle, a boom pivotally mounted on thevehicle chassis and adapted to elevate containers, a skid frame carried by and longitudinally movable over said movable means up and which the first container elevated is raised, and means for operating said first named means and said skid frameso constructed and arranged that the weight of each container when elevated will move said skid frame and said first named means in succession forwardly on the vehicle and swing the container into position for lowering onto the vehicle.

I 13. In a transporting vehicle, a platform mounted on the vehicle chassis forfmovement backward and forward over-the rear wheels of the vehicle, a boom pivotally mounted forwardly on the vehicle chassis for elevating containers, a skid frame mounted for forward and backward movement on saidplatform and up which the first container elevated is raised, and means for moving said skid frame rearwardly so constructed and arranged that the weight of the first container when elevated will move said skid frame forwardly on the vehicle while the container swings into position for lowering onto the vehicle.

14. In a transporting vehicle, a track or way.

imparting movement to said skid frame, said power means being so constructed and arranged that the weight of eachcontainer when elevated will move said skid frame and any containers on the vehicle forward and while the container swings into position for lowering onto the vehicle.

16. In a transporting vehicle, a boom pivotally mounted on the vehicle chassis for elevating containers, a skid frame mounted for movement forward and backward over the rear wheels of the vehicle and capable of occupying successive forward positions in one of which the first container is raised along said skid frame, each container in turn acting as a skid up which the next container elevated is raised and power cylinder means for operating said skid frame so constructed and'arranged that the weight of each container when elevated will move said skid frame and any containers on the vehicle forward while the container swings into position'forlowering onto the vehicle.

17. In a transporting vehicle, a track or way extending forward from the rear end of the vehicle above and across the rear axle thereof, a platform mounted for backward and forward movement on said track or way, a vertically swinging boom pivoted at the forward end of said track or way, a power cylinder means for im-, parting vertical movement to said boom, a. skid frame mounted for forward and backward movement on said platform and up which. the first container elevated is raised, a power cylinder controlling the forward-movement of said plathicle of the type described, having side, front and rear walls, a bail fixed to the rear wall, a drop bottom pivoted to the rear .wall, and container lifting means secured tdsaid drop bottom, said front wall being formed to provide means constituting a skidway.

19. A container for use with a transporting vehicle of the type described, having side, frontand rear walls, a ball fixed to the rear wall, a drop bottom pivoted to the rear wall, and container lifting means secured to said drop bottom, said front wall being formed to provide means constituting a skidway and an automatic hook pivotally mounted at the middle top of the front wall. v r

20. In. a transporting vehicle, a skid frame rnovable forward and backward over the rear wheels of the vehicle, boom arms pivoted at the sides or the vehicle chassis and adapted to elevate a first container along said skid frame and thereafter displace said skid frame and container, said boom arms adapted to deposit the containers on said vehicle, said boom arms being so constructed and arranged that in lowered position they embrace and restrain the containers on the vehicle.

GEORGE R. DEMIPSTER. 

